Perpetual engagement book



April 2, 1963 A. DE HERTELENDY 3,083,988

PERPETUAL ENGAGEMENT 'BOOK Filed Dec. 7, 1956 IN V EN TOR. ANDOR r/e. HERTE L E MD) fiK/M A T TORNE Y United States Patent Ufice 3,083,988Patented Apr. 2, 1963 3,083,988 PERPETUAL ENGAGEMENT BOOK Antler deHertelendy, 103 Waverly Place, New York 11, N.Y. Filed Dec. 7, 1956,Ser. No. 627,033 2 Claims. (Cl. 281-19) This invention relates to aperpetual engagement book.

It is the principal object of the present invention to provide aperpetual engagement book in which the pages are formed with a smoothsurface that can be cleaned after use and in which the pages haveindicated thereon the days of the month and can be turned in orderthrough three hundred and sixty degrees to bring up a new date and toalign the pages turned over for use during a subsequent month or otherperiod of time.

It is another object of the invention to provide a perpetual engagementbook in which the engagements for the current day will lie on the frontpage and thereby obviating the time consumed in searching and at thesame time provide an engagement book that will have room for engagementsover a considerable length of time.

It is a further object to provide a perpetual engagement book in whichthe pages or leaves are separately hinged upon a hinge pin which servesas a turning pivot by means of tongues or hinge projections and whereinthese tongues are so dimensioned and positioned that they can be easilyseparated by touch from one another so as to be able to select anydesired page and wherein these tongues will bear the date mark so thatthe pages can be immediately turned to any particular date in the book.

It is still a further object of the invention to provide an engagementbook constructed of pages which can be turned through three hundred andsixty degrees with a cover or stand to which the hinge pin on which theleaves have been assembled can be releasably attached and easilyremovable therefrom when turning the leaves back.

Another object of the invention is to provide an engagement book whichdoes away with the necessity heretofore experienced in such books tohave to either transcribe engagements into a new book when the old oneis up or to carry two books when it is about to be up.

Still further objects of the invention are to provide a perpetualengagement book, having the above objects in mind, which is of simpleconstruction, inexpensive to manufacture, a simple hinge constructionwith pages which can be easily cleaned with soap and water, cleaningfluids, or simply with saliva, durable, compact and assuming only thethickness of the superimposed leaves, bendable hinge connections, lightin weight, effective and efficient in use.

For a better understanding of the invention, reference may be had to thefollowing detailed description taken in connection with the accompanyingdrawing, which illustrates an engagement book made for the period of onemonth and, in which FIGURE 1 is a fragmentary plan view illustrating themanner in which the hinge pin is assembled in the cover cli s,

16. 2 is a fragmentary plan view showing the bendable hinge projectionsand the hinge pin,

FIG. 3 is a plan view of one of the leaves separated from the hinge pin,

FIG. 4 is a perspective rear View looking upon one end of the assemblyand illustrating the motion of the leaves as they are turned from thefront through three hundred and sixty degrees to the back thereof,

FIG. 5 is an enlarged transverse sectional view showing the leaves andillustrating the manner in which the hinge projections are bent to allowthe leaves to lie fiat and superimposed and flush upon one another, thesection being taken generally on 5-5 of FIG. 2,

FIG. 6 is an illustrative and perspective view showing the manner inwhich the separate leaves are cleaned for further use, and '7 FIG. 7 isa sectional view taken on line 7-7 of FIG. 1.

Referring now to the figures, 10 represents a leaf formed of paper orplastic material with a surface on which a pencil mark can be made andthereafter readily cleaned from the surface by soap and water, cleaningfluids or simply saliva. Each of these leaves are divided into threespaces 11 on which the engagements may be written and smaller spaces 12used for indicating the appointed time. Each of these leaves have twobendable hinge projections 13 and 14 separated from one another andadapted for connecting the leaf to hinge pin '15. These hingeprojections of the different leaves lie adjacent one another on thehinge pin 15, so that any one of the hinge projections for any givenleaf can be readily selected from the other projections and the leavesreadily turned so that the selected leaf can be made to appear quickly.The hinge projections are narrow and with the leaves being made of paperor plastic material the projections can readily be formed about thehinge pin by folding, and gluing or heat sealing. The projections 13 and14 are bendable as best illustrated in FIG. 5 so as to permit the mainbody of sheets to lie flush and superimposed upon one another and thethickness thereof to be added up to be only slightly greater than thehinge pin and hinge projections. If the hinge connections were notbendable the flush engagement of the sheets with one another would beimpossible.

The projections 13 are marked with dates of the month and each leaf willhave three date areas. The leaves are arranged chronologically and areseparately hinged from top to bottom so that they can be turned up insequence.

A special page can be added to the assembly for marking furtherengagements beyond a months time. All of the past engagements aresupposed to be crossed out or Washed off to leave the pages clean forwriting down future engagements.

If the owner wants to put down an engagement for some future date orlook up engagements already made for that date he opens the book to thedesired page by holding down its tongue and lifting the pages thereover.The tongues or projections have identifying date numbers visible at alltimes which as explained helps the owner to quickly find and expose thedesired page.

A page of the past, normally the top page, if turned back on the hingepin becomes the bottom leaf. In that position it will be available forinscribing engagements for the following month. Turning over the pageswith the past engagements brings a top position for the present dayengagements.

If the book is to be carried in the owners pocket a suitable foldablecover 16 may be used for this purpose. Two clips '17 and 18- may beriveted by rivets 19 to one side of the cover. The ends of the hinge pincan be slid into position as shown in FIG. 1 under the clips 17 and 18.The assembled pages are disconnected from the clips when any one of thepages are to be turned back. The cover 16 will prevent the pocket frombeing soiled and the written matter on the top page from being removedor rubbed off.

Eleven leaves or pages have been shown assembled upon the hinge pin 15,with one page serving for three consecutive days and the left over oreleventh page serving for a thirty-first day and for reserve space onwhich other matters may be listed. The number of pages of the book canbe varied. They can be reduced if both sides of the same leaf are to bereserved for inscriptions. The book can be made for the period of onewhole year 3 also; in that case the pages will bear the names of themonth.

It should now be apparent that there has been provided a compact andefiicient engagement book by which the book can have continued use inthat the pages can be turned over one another through three hundred andsixty degrees and still allowed to lie flush upon one another to consumelittle space and in which the pages can be easily cleaned and adaptedfor perpetual use.

While various changes may be made in the detail construction, it shouldbe understood that such changes shall be within the spirit and scope ofthe present invention as defined by the appended claims.

What is claimed is:

1. A perpetual engagement book or the like comprising leavessuperimposed and in flush face to face engagement with one another toprovide a relatively thin book, each of said leaves havinglongitudinally-spaced resiliently bendable hinge projections extendingfrom one edge, said hinge projections of one leaf lying adjacent to andlongitudinally olfset to the hinge projections of the next leaf, saidhinge projections having hinge openings at their free ends thereof, ahinge pin running through the openings of all of the hinge projectionsof the leaves to place the openings in single line, said leaves beingturnable singly or together through three hundred. and sixty degreesabout the hinge pin, said hinge projections being bent under bendingstress while the leaves of the book are closed.

2. A perpetual engagement book or the like as defined in claim 1, and abook cover and laterally-spaced spring clip retainers secured to theinner side of the cover for releasably receiving the hinge pin wherebythe pages may be released from the cover to turn the pages.

References Cited in the file of this patent UNITED STATES PATENTS756,106 Exline Mar. 29, 1904 1,340,140 Anthony May 18, 1920 1,531,330Battle Mar. 31, 1925 1,979,475 Knettles Nov. 6, 1934 2,463,450 WisnerMar. 1, 1949 2,721,556 Zandelin Oct. 25, 1955 FOREIGN PATENTS 162,299Switzerland Aug. 16, 1933

1. A PERPETUAL ENGAGEMENT BOOK OR THE LIKE COMPRISING LEAVESSUPERIMPOSED AND IN FLUSH FACE TO FACE ENGAGEMENT WITH ONE ANOTHER TOPROVIDE A RELATIVELY THIN BOOK, EACH OF SAID LEAVES HAVINGLONGITUDINALLY-SPACED RESILIENTLY BENDABLE HINGE PROJECTIONS EXTENDINGFROM ONE EDGE, SAID HINGE PROJECTIONS OF ONE LEAF LYING ADJACENT TO ANDLONGITUDINALLY OFFSET TO THE HINGE PROJECTIONS OF THE NEXT LEAF, SAIDHINGE PROJECTIONS HAVING HINGE OPENINGS AT THEIR FREE ENDS THEREOF, AHINGE PIN RUNNING THROUGH THE OPENINGS OF ALL OF THE HINGE PROJECTIONSOF THE LEAVES TO PLACE THE OPENINGS IN SINGLE LINE, SAID LEAVES BEINGTURNABLE SINGLY OR TOGETHER THROUGH THREE HUNDRED AND SIXTY DEGREESABOUT THE HINGE PIN, SAID HINGE PROJECTIONS BEING BENT UNDER BENDINGSTRESS WHILE THE LEAVES OF THE BOOK ARE CLOSED.